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<head><meta charset="utf-8"><title>Inconsistent results between graph &amp; comparison page on perf · t-compiler/performance · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/index.html">t-compiler/performance</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/Inconsistent.20results.20between.20graph.20.26.20comparison.20page.20on.20perf.html">Inconsistent results between graph &amp; comparison page on perf</a></h3>

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<a name="235485352"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/Inconsistent%20results%20between%20graph%20%26%20comparison%20page%20on%20perf/near/235485352" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tm <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/Inconsistent.20results.20between.20graph.20.26.20comparison.20page.20on.20perf.html#235485352">(Apr 21 2021 at 10:17)</a>:</h4>
<p>On <a href="http://perf.rust-lang.org">perf.rust-lang.org</a> the graph for await-call-tree-debug shows a incremental-full regression from commit 23aef90b4e with 236,888,240 instructions to commit 2e7eb85b1d with 250,215,330 instructions. But when I open a comparison page by clicking on either of those commits, the low-end measurment doesn't match and is 250,274,004 instead.</p>



<a name="235487476"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/Inconsistent%20results%20between%20graph%20%26%20comparison%20page%20on%20perf/near/235487476" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tm <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/Inconsistent.20results.20between.20graph.20.26.20comparison.20page.20on.20perf.html#235487476">(Apr 21 2021 at 10:36)</a>:</h4>
<p>Similarly, if I open largest regression on externs-check graph, the comparison page shows a large improvement ...</p>



<a name="235491457"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/Inconsistent%20results%20between%20graph%20%26%20comparison%20page%20on%20perf/near/235491457" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/Inconsistent.20results.20between.20graph.20.26.20comparison.20page.20on.20perf.html#235491457">(Apr 21 2021 at 11:12)</a>:</h4>
<p>Thanks for noticing! I'll try to take a look at this, but it would be great to file an issue so it doesn't get lost. <span class="user-mention" data-user-id="352985">@tm</span> could you do that?</p>



<a name="235566651"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/Inconsistent%20results%20between%20graph%20%26%20comparison%20page%20on%20perf/near/235566651" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tm <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/Inconsistent.20results.20between.20graph.20.26.20comparison.20page.20on.20perf.html#235566651">(Apr 21 2021 at 19:22)</a>:</h4>
<p>Everything seems to be working fine right now. Not sure if you already had a time to fix it, but in any case I will open an issue if I encounter the problem once again. Thanks.</p>



<a name="235566800"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/247081-t-compiler/performance/topic/Inconsistent%20results%20between%20graph%20%26%20comparison%20page%20on%20perf/near/235566800" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/247081-t-compiler/performance/topic/Inconsistent.20results.20between.20graph.20.26.20comparison.20page.20on.20perf.html#235566800">(Apr 21 2021 at 19:23)</a>:</h4>
<p>Hm, I did not change anything, so not sure what caused it then.</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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